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The MICRO 100 BB-180750SX is a solid carbide boring bar designed for precision internal boring operations on CNC lathes and manual turning centers. It cuts right hand with a minimum bore diameter of 0.18 inches and a maximum bore depth of 0.75 inches, making it well-suited for tight-tolerance finish work in small-diameter bores. The 1/4 inch shank diameter and 2.5 inch overall length keep the tool compact and rigid, reducing chatter and deflection in close-quarter setups. Machinists and toolroom technicians install this bar for applications where carbide hardness and edge retention are required in ferrous and non-ferrous materials.
This boring bar is used in production and job-shop environments for boring small-diameter holes in turned parts. Typical applications include finish boring of bearing pockets, hydraulic valve bodies, and precision bushings where dimensional accuracy and surface finish are critical. The right hand cutting direction is standard for conventional lathe rotation. The compact overall length suits Swiss-style and short-stroke lathe applications as well as standard bench lathes.
Designed for use in standard 1/4 inch boring bar holders on CNC and manual turning centers configured for right hand cutting operations.
Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before installing or removing the boring bar. Secure the shank fully within the tool holder to the recommended engagement depth per the holder manufacturer's guidelines to minimize deflection. Verify cutting direction, tool height, and bore diameter setup against the workpiece drawing before starting a cut.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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